JP6740660B2 - Computing device, electronic device, and program - Google Patents

Description

The present invention, computing device, electronic apparatus, about 及 beauty program.

For example, in an educational field, there is an education support system utilizing IT technology, in which a problem is distributed from a server device to an information terminal of each student, and the answers obtained from the information terminal of each student are aggregated and evaluated. ..

In a conventional education support system, it is considered that access to textbook information, Web information, etc. is restricted when a problem is distributed from the server device to each student's information terminal (see, for example, Patent Document 1). ..).

JP 2012-252239 A

In a conventional education support system, when a question is distributed to a student's information terminal, access to the information terminal can be restricted so that the answer to the question or reference information is not obtained from the outside.

However, you can easily create a question using the function that the terminal has, and you can not use the function used for the problem on other terminals to which you created the problem There wasn't.

The present invention has been made in view of such a problem, and it is possible to input and transmit a calculation formula using a calculation function provided in the device, and to use the function used in the calculation formula in another device of the transmission destination. restrict and it is possible to question by computing device, and to provide electronic equipment,及 beauty program.

Computing device according to the present invention includes a calculation formula input means for inputting formula data including the calculation function, the use of the calculator included a calculation formula data input by the calculation formula input means to said calculation formula data It is characterized by further comprising: restricted use formula output means for transmitting to the external device by the transmitting means together with the use limitation information for limiting.

An electronic device according to the present invention includes a restricted calculation formula acquisition unit that acquires calculation formula data including a calculation function output from an external calculation device and use restriction information of the calculation function, and the restricted calculation formula acquisition unit. A calculation formula output unit that outputs the calculation formula data and the use restriction information of the calculation function to another calculation device, and the calculation formula data output to the other calculation device by the limited calculation formula output unit. Answer calculation formula acquisition means for acquiring from the other calculation device the calculation formula data of the answer input according to the user operation as the calculation formula data of the question, and output to the other calculation device by the limited calculation formula output means. The calculation result judgment means for judging whether or not the calculation result of the calculated calculation formula data and the calculation result of the calculation formula data of the answer acquired by the answer calculation formula acquisition means are equal to each other.

According to the present invention, a calculation formula can be input and transmitted using the calculation function of the device, and it is possible to limit the function used for the calculation formula to other questions at the other device of the transmission destination. Become.

The schematic diagram which shows the utilization mode of the scientific calculator 10F as a calculating device and the tablet terminal 20 as an electronic device (communication device) which concern on embodiment of this invention. The block diagram which shows the structure of the electronic circuit of the scientific calculator 10F as the said calculation device. The block diagram which shows the structure of the electronic circuit of the tablet terminal 20 as the said electronic device (communication device). The flowchart which shows the calculation process of the said scientific calculator 10F. The flowchart which shows the communication interruption process with respect to the calculation process of the said scientific calculator 10F. 6 is a flowchart showing a communication process according to a dedicated application program of the tablet terminal 20. The figure which shows the operation state in the verification (Verify) calculation mode and the operation state of the tablet terminal 20 according to the calculation process (Example 1) of said scientific calculator 10F (10FA for teachers/10FB for students). The figure which shows the operation state in the verification (Verify) calculation mode and the operation state of the tablet terminal 20 according to the calculation process (Example 2) of said scientific calculator 10F (10FA for teachers/10FB for students). The figure which shows the operation state in the basic calculation mode and the operation state of the tablet terminal 20 according to the calculation process (Example 3) of said scientific calculator 10F (10FA for teachers/10FB for students).

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram showing a usage pattern of a scientific calculator 10F as a computing device and a tablet terminal 20 as an electronic device (communication device) according to an embodiment of the present invention.

Here, the scientific calculator 10F is shown as a teacher scientific calculator 10FA and a student scientific calculator 10FB.

As shown in FIGS. 1(A) and 1(B), the scientific calculator 10F has a small size that the user can hold with one hand and operate with one hand because of its portability. A key input unit 11 and a display output unit 12 are provided.

The key input unit 11 is a group of numerical/arithmetic symbol keys 111 for inputting numerical values and mathematical formulas and for instructing execution of calculations, and functions for inputting various functions and activating memory functions. Function key group 112, mode setting key group 113 for displaying menu screens of various operation modes and instructing operation mode setting, cursor movement operation and data item selection displayed on the display output unit 12 A cursor key 114 for performing operations and the like is provided.

[0] to [9] (numerical value) keys, [+][-][x][÷] (four symbols) keys, [Ans][=] (execution) Keys, [AC] (clear) keys and the like are arranged.

The function function key group 112 includes [x ^-1 ] ( ^-1 power; reciprocal) key, [√□] (root) key, [□/□] (fractional) key, [sin] (sign) A key, a [cos] (cosine) key, a [tan] (tangent) key, a [M+] (memory plus) key, an [OPTN] (option) key, a [RCL] (memory call) key, and the like are arranged.

As the mode setting key group 113, a [MODE] (mode) key, a [SHIFT] (shift) key, an [ALPHA] (alphabet) key, an [ON] (power on) key, and the like are arranged.

It should be noted that the keys of the numerical value/arithmetic symbol key group 111 and the function function key group 112 are not operated by the [SHIFT] key and are subsequently operated, so that the key function is not the key function described on the key top. It can function as a key written above the key. For example, if the [AC] key is operated (hereinafter, referred to as [SHIFT]+[AC] key or the like) after the [SHIFT] key is operated, it becomes an [OFF] (power off) key. The [SHIFT]+[OPTN] key becomes the [communication] key 11Q, and the [SHIFT]+[RCL] key becomes the [STO] (memory registration) key. When the [(-)] key is operated after operating the [ALPHA] key, it becomes the [A] input key (input key for the variable "A" in the input expression), and the [CALC] key is operated after operating the [ALPHA] key. Then, it becomes the [=] input key (“=” input key to the input expression).

The display output unit 12 is composed of a dot matrix type liquid crystal display unit.

As shown in FIG. 1C, the tablet terminal 20 includes a display output unit 21 that also functions as a touch input unit.

The scientific calculator 10F has wireless communication means, and has various calculation functions (Σ (sigma), √ (root), □/□ (fraction), sin, cos, tan (trigonometric function), ∫ (integration), Other) to input calculation formula data, a function to set a limitation of the calculation function used for the calculation formula data, the calculation formula data and information of the calculated calculation function (limitation function data) as problem data Function to send to another scientific calculator 10F (or the tablet terminal 20), function to input answer formula data according to the formula data of question data received from another scientific calculator 10F (or the tablet terminal 20) The function of limiting the calculation function according to the received restriction data of the question data, the tablet terminal 20 as work data including the calculation data of the received problem data and the calculation data of the input answer It has a function to send to.

The work data includes a calculation mode set based on the calculation process of the scientific calculator 10F and input data including calculation formula data, numerical values, variables, texts, and the like input according to a user operation.

Note that, in FIG. 1A, the calculation function data using the calculation function (Σ) is input and displayed by the teacher scientific calculator 10FA, the calculation function (Σ) is set as the restriction function, and the input is performed. It shows a state in which work data including calculation formula data and restricted function data is transmitted as question data to the student scientific calculator 10FB. Further, FIG. 1B shows the case where the calculation data of the question data received from the teacher scientific calculator 10FA is displayed on the student scientific calculator 10FB, and the calculation is executed immediately by operating the [=] key. In the state where the calculation function (Σ) is restricted, the restricted function symbol (Σ) in the calculation formula data is identified and displayed h, and the function restriction mark R is displayed.

The tablet terminal 20 has a wireless communication means, and has a function of storing the question data received from the teacher scientific calculator 10FA as a question data list associated with the user name of the scientific calculator 10FA. It has a function of transmitting the question data designated according to the operation to the student scientific calculator 10FB, a function of judging whether the answer data received from the student scientific calculator 10FB is correct or incorrect, and saving the answer data list.

Further, the tablet terminal 20 is communicatively connected to a calculation server 30 (see FIGS. 2 and 3) on a communication network (Web) N, and receives image data as calculation reference information created by the calculation server 30. It has a function to display.

The electronic device (communication device) is not limited to the tablet terminal 20, and may be configured as a PDA (personal digital assistants), a smartphone, a notebook PC (personal computer), a game machine, or the like.

As a wireless communication means for establishing a communication connection between the scientific calculator 10FA/10FB as the calculation device and between the scientific calculator 10FA/10FB and the electronic device (communication device) 20, Bluetooth (registered trademark) or the like is used. Any of short-distance wireless communication, short-distance wireless communication such as NFC (Near Field Communication), short-distance wireless communication by wireless LAN such as Wifi (registered trademark), and other short-distance wireless communication may be used.

FIG. 2 is a block diagram showing a configuration of an electronic circuit of the scientific calculator 10F as the calculation device.

The electronic circuit of the scientific calculator 10F includes, in addition to the key input unit 11 and the display output unit 12, a CPU 13 which is a computer, a memory 14, a recording medium reading unit 15, and a wireless communication unit 16. ..

The CPU 13 controls the operation of each part of the circuit in accordance with the calculation processing program 14a stored in the memory 14 and executes various calculation processing according to a key input signal from the key input unit 11. The calculation processing program 14a may be previously stored in the memory 14, or may be read and stored in the memory 14 from the external recording medium M such as a memory card via the recording medium reading unit 15. May be The calculation processing program 14a cannot be rewritten by the user operating the key input unit 11.

The memory 14 also stores a unique ID 14b as information that cannot be rewritten by the user. The unique ID 14b is an ID (identification information) unique to each scientific calculator 10F.

In the memory 14, a calculation mode area 14c, an input data area 14d, and a restricted function data area 14e are secured in order to store user rewritable data in addition to such information that cannot be rewritten by the user. There is.

In the calculation mode area 14c, a calculation mode (basic calculation/verify calculation, etc.) set in accordance with initial setting or user operation, an angle mode (degree method (D)/radian degree method (R)/grad ( G)), rounding mode (rounding decimal places (Fix), number of significant digits (Sci), etc.) and display mode (natural expression/line display) are stored.

In the input data area 14d, the data of the key code input by the key input unit 11 is sequentially input, and the input data such as calculation formula data, numerical values (table), variables, and text are stored. To be done. For example, a numeric key is a code indicating a number, a function key such as "sin" is a code indicating the function, and an arithmetic symbol key such as "+", "-", "x", "÷" is a code indicating the arithmetic symbol. Remembered. The input data area 14d also stores variables such as different numerical values individually registered for nine characters A, B, C, D, E, F, M, X and Y. For example, by operating the [3] key, [SHIFT]+[RCL] key (=[STO] key), [(−)] key (=[A] key) of the key input unit 11, a variable can be obtained. The numerical value “3” is registered in A.

The restricted function data area 14e stores the restricted calculation function set according to the user operation with respect to the calculation formula data stored in the input data area 14d.

The wireless communication unit 16 has a function of wirelessly communicating with another computing device 10FA/10FB or the electronic device (communication device) 20 by the Bluetooth, NFC, Wifi or the like. Instead of transmitting and outputting the calculation data from the calculation device 10 by the wireless communication unit 27, the calculation data and the function restriction information may be two-dimensionally coded and displayed (display output) on the display output unit 12. .. The two-dimensional code displayed (displayed and output) on the computing device 10 is photographed by the camera unit 26 of the electronic device (communication device) 20, and the photographed two-dimensional code is converted into original calculation data and function restriction information. Will be acquired. Further, between the electronic devices (communication devices) 20, one of the electronic devices (communication devices) calculates the calculation data and the function restriction information into a two-dimensional code, and the display output unit 12 outputs the two-dimensional code, and the other electronic device (communication device) Then, the camera unit 26 of the electronic device (communication device) 20 may capture the image, and the captured two-dimensional code may be converted into the original calculation data and the function restriction information and acquired. As described above, the present invention can be implemented by replacing transmission/reception by wireless communication with output of a two-dimensional barcode to a display unit/acquisition by capturing and converting a two-dimensional barcode.

In the scientific calculator 10F as the computing device configured as described above, the CPU 13 controls the operation of each part of the circuit according to the instruction described in the calculation processing program 14a, and the software and the hardware cooperate to operate. By doing so, various functions as described in the operation description below are realized.

FIG. 3 is a block diagram showing a configuration of an electronic circuit of the electronic device (communication device) 20.

In addition to the display output unit 21, the electronic circuit of the electronic device (communication device) 20 is integrated with the CPU 22 which is a computer, the memory 23, the recording medium reading unit 24, and the display output unit 21 in an overlapping manner. The touch input unit 25, the wireless communication unit 26, and the short-range wireless communication unit 27 are provided. The touch input unit 25 may include a key input unit such as a power key.

According to the communication processing program 23a and the EDUCATION program 23b stored in the memory 23, the CPU 22 receives a touch (or key) input signal from the touch input unit 25, or the wireless communication unit 26 or the short-range wireless communication unit. The operation of each part of the circuit is controlled according to the signal received by 27. Each of the programs 23a and 23b may be stored in advance in the memory 23, or may be read and stored in the memory 23 from the external recording medium M such as a memory card via the recording medium reading unit 24. It may be one.

The EDUCATION program 23b is a list of question data in which the question data received from the teacher's scientific calculator 10FA is associated with the user name of the scientific calculator 10FA by communicatively connecting to the scientific calculator 10F by the short-range wireless communication unit 27. Or the question data specified from the question data list according to a user operation is transmitted to the student scientific calculator 10FB, or the answer data received from the student scientific calculator 10FB is determined as correct or incorrect, and the answer data list is displayed. Or for connecting to the calculation server 30 on the communication network (Web) N to receive and display and output the image data as the calculation reference information created by the calculation server 30. It is an application program.

According to the EDUCATION program 23b, work data received from the teacher's scientific calculator 10FA is stored in the memory 23 as problem data in association with the user name and unique ID of the scientific calculator 10FA and stored. Area 23c, answer data area 23d for storing and saving the answer data received from the student scientific calculator 10FB and the correctness determination result thereof in association with the user name and unique ID of the scientific calculator 10FB, and other work data. A work data area 23e for temporarily storing the data is secured as needed.

In the electronic device (communication device) 20 configured as described above, the CPU 22 controls the operation of each part of the circuit according to the instructions described in the communication processing program 23a and the EDUCATION program 23b, and the software and the hardware are combined. By operating in cooperation with each other, various functions as described in the operation description below are realized.

Next, operations of the scientific calculator 10F as the calculation device having the above-described configuration and the tablet terminal 20 as the electronic device (communication device) will be described.

4 and 5 are flowcharts showing the calculation process (No. 1 and No. 2) of the scientific electronic calculator 10F, of which FIG. 5 is a flow chart showing the communication interrupt process for the calculation process.

FIG. 6 is a flowchart showing a communication process according to the dedicated application program of the tablet terminal 20.

(Example 1)
FIG. 7 is a diagram showing an operation state in the verify calculation mode and an operation state of the tablet terminal 20 according to the calculation process (Example 1) of the scientific calculator 10F (10FA for teacher/10FB for student). ..

In the verify calculation mode, when the calculation formula data (right side of [=]) of the answer to the calculation formula data of the problem data (here, left side of [=]) is input and the calculation is executed, The calculation result corresponding to the calculation formula data on the left side is automatically calculated. Then, it is a calculation mode in which it is determined whether the calculation result of the calculation formula data of the right side input as the calculation formula data of the answer matches the calculation result of the automatically calculated left side (correctness determination).

On the teacher scientific calculator 10FA, a menu screen (not shown) of the calculation mode is displayed, and the verify calculation mode is set from the menu screen of the calculation mode (steps S1 and S2).

Then, as shown in FIG. 7(A1), the calculation formula data “Σ[x=1-10 using the calculation formula data [here, calculation function [Σ(sigma)]] according to the user (teacher) operation. ] (X)=”) is input and displayed on the display output unit 12. The input calculation formula data of the question is stored in the input data area 14d (step S3).

Here, in order to prohibit the student from giving an answer using the calculation function [Σ (sigma)], the [OPTN] key is operated to display a screen (not shown) for setting the restriction of the calculation function. (Step S4 (Yes)), as shown in FIG. 7(A2), a calculation function [Σ] for limiting the calculation formula data “Σ[x=1-10](x)=” of the problem is set. .. The set calculation function [Σ] is stored and saved in the restricted function data area 14e (step S11). Even if the student does not set the limitation of the calculation function, the limitation may be set to the calculation function used in the formula. Further, for example, when a calculation function having a plurality of arguments is used in the formula, the calculation function may be restricted. (For example, in the example of the above calculation function [Σ (sigma)], there are three arguments: the first term (=1), the number of terms (=10), and the mathematical expression (=x) to be calculated, The limit of the calculation function may be set without setting the limit of the calculation function, for example, when nPr (permutation) is used in the formula, n, r in the nPr (permutation) calculation function. There may be two arguments of, and the restriction of the calculation function may be set without the student setting the restriction of the calculation function.

After that, as shown in FIG. 7(A3)→(B1) (or (C1)), the formula data of the question input by the teacher is sent to the student scientific calculator 10FB (or the tablet terminal 20 once). When the [communication] key 11Q is operated (step S12 (Yes)→S5 (No)→S7 (Yes)), the student scientific calculator 10FB (or the tablet terminal 20) is connected for communication and the calculation mode (verify calculation) is performed. Work data including input data (calculation formula data of question) and restricted function data [Σ] stored in the restricted function data area 14e are associated with the unique ID as problem data, and the student scientific calculator 10FB (or the tablet terminal 20) is transmitted (step S8).

In the tablet terminal 20, in a state where the dedicated application program (EDUCATION program 23b) is activated, the tablet terminal 20 is communicatively connected to the teacher scientific calculator FA, and the problem data associated with the unique ID transmitted from the scientific calculator FA. Is received (step T1 (Yes)→T2), it is determined whether or not the user name corresponding to the received unique ID of the scientific calculator 10FA is already registered in the memory 23 (step T3). ..

When it is determined that the user name corresponding to the unique ID of the teacher scientific calculator 10FA is not registered in the memory 23 (step T3 (No)), the teacher scientific calculator input according to the user operation. The user name of 10FA is registered in the memory 23 in association with the received unique ID of the scientific calculator 10FA (steps T4 and T5).

Then, the received question data is stored and saved in the question data area 23c in association with the unique ID received from the teacher scientific calculator 10FA, the user name, and the reception date and time (step T6). ..

The problem data area 23c may be secured in the memory area of the calculation server 30 on the communication network (Web) N.

When the question data received from the teacher scientific calculator 10FA is stored in the question data area 23c, a list (not shown) of the question data stored in the question data area 23c shows the user name and the reception date and time. Is displayed on the display output unit 21 in association with (step T7).

In order to send the question data from the tablet terminal 20 to the student scientific calculator 10FB, transmission of the question data is instructed in response to a user operation (step T8 (Yes)), and the question data area 23c is displayed. A list of the stored problem data is displayed in association with the user name and the reception date and time as described above (step T9).

When the question data to be sent to the student scientific calculator 10FB is designated from the question data displayed in the list of the question data (step T10), the student scientific calculator 10FB is connected to communicate and the designated. The generated question data (work data including calculation mode and input data+restricted function data) is transmitted to the student scientific calculator 10FB in association with the unique ID of the teacher scientific calculator 10FA (step T11).

In the student scientific calculator 10FB, when the question data associated with the unique ID transmitted from the teacher scientific calculator 10FA (or the tablet terminal 20) is received (step S13 (Yes)), as the question data. The calculation mode (verify calculation) and input data (calculation formula data in question) included in the work data are stored and set in the calculation mode area 14c and the input data area 14d, and the limited function data [Σ] is set. It is saved and set in the restricted function data area 14e (step S14).

Then, as shown in FIG. 7(B2), the calculation formula data “Σ[x=1-10](x)=” of the problem is displayed on the display output unit 12 (step S15).

Here, by the user (student) operation, as the calculation formula data of the answer following the calculation formula data of the question, for example, the calculation function [Σ] used for the calculation formula data of the question is used to easily calculate the calculation result. In order to obtain, immediately when [=] is input and calculation execution is instructed (step S17 (Yes)), the calculation formula data of the problem “Σ[x=1- 10] It is determined that there is a limited calculation function [Σ] for the calculation of the answer (x)=” (calculation on the right side) (step S18 (Yes)).

Then, as shown in FIG. 7(B2), the notation of the limited calculation function [Σ] used in the calculation formula data of the problem is identified and displayed, and the error message R indicating the function limitation is displayed. (Step S19).

After that, as shown in FIG. 7B3 (or (B4)), the answer calculation formula data “{10×(1+10)/2” without using the limited calculation function [Σ] (or “1+2+3+...+10”) is input and displayed, and when the calculation execution is instructed in the same manner as described above (steps S16, S17 (Yes)→S18 (No)), the calculation formula data of the input answer (right side) The calculation is executed and the calculation result is displayed (step S20).

Here, since the calculation mode is set to the verify calculation mode (step S21 (Yes)), the calculation result of the calculation formula data (right side) of the question and the calculation formula data of the answer (right side) are automatically calculated. It is determined whether or not the calculation results match (step S22), and if they match (step S22 (Yes)), a mark [OK] indicating verify OK is displayed (step S23).

When it is determined that the calculation result of the calculation formula data (right side) of the question is automatically different from the calculation result of the calculation formula data (right side) of the answer, a mark [NG] indicating verify NG is displayed. (Step S24).

Then, when the question data sent this time to the student scientific calculator 10FB is the question data sent by relaying the tablet terminal 20, the answer formula data is input to the answer formula data. In order to send work data including a series of calculation formula data (here, calculation formula data shown in FIG. 7 (B3) or (B4)) to the tablet terminal 20, by operating the [Communication] key 11Q. When the transmission of the work data is instructed (step S25 (Yes)), the work data instructed to be transmitted is connected to the tablet terminal 20, and the work data instructed to be transmitted is used as the response data to identify the unique ID of the student scientific calculator 10FB. The information is associated and transmitted to the tablet terminal 20 (step S26).

In the tablet terminal 20, the answer data (answer data to the question data specified in step T10) that is connected to the student scientific calculator 10FB by communication and is transmitted from the student scientific calculator 10FB is unique to the scientific calculator 10FB. When the IDs are received in association with each other (step T12 (Yes)→T13), it is judged whether or not the calculation formula data of the question of the designated question data includes the calculation formula data (right side) of the answer in advance ( Step T14).

Here, it is determined that the calculation formula data (here, “Σ[x=1-10](x)=”) of the specified question data does not include the calculation formula data (right side) of the answer in advance. And (step T14 (No)), of the series of formula data included in the answer data, the calculation result of automatically calculating the formula data (left side) of the question and the formula data (right side) of the answer. It is determined whether the results match or not (step T18).

Then, the calculation result data of the question (left side) “Σ[x=1-10](x)=” and the calculation formula data of the answer (right side) “{10×(1+10)}/2” ( Alternatively, if it is determined that the calculation results of “1+2+3+...+10” match (step T18 (Yes)), the user name and the answer data registered corresponding to the unique ID of the student scientific calculator 10FB are correct. The answer data associated with the determination result [OK] of the effect is stored and saved in the answer data area 23d (step T16).

Then, as shown in FIG. 7C2, a list of the answer data stored in the answer data area 23d is displayed on the display output unit 21 as the answer data list LA (step T17).

In step T18, the calculation result of the calculation formula data of the question (left side) and the calculation result of the calculation formula data of the answer (right side) are calculated from the series of calculation formula data included in the answer data. If it is determined that they do not match (step T18 (No)), the user name registered corresponding to the unique ID of the student scientific calculator 10FB and the determination result [NG] indicating that the response data is incorrect are associated. The added answer data is stored and saved in the answer data area 23d (step T19), and is displayed as the answer data list LA in the same manner as described above (step T17).

(Example 2)
FIG. 8 is a diagram showing an operation state in the verify calculation mode and an operation state of the tablet terminal 20 according to the calculation process (Example 2) of the scientific calculator 10F (10FA for teacher/10FB for student). ..

Here, in the teacher's scientific calculator 10FA, the calculation formula data “(1/√2)-{(√2-1)/2)}=” using the calculation function [√(root)] is input. (FIG. 8(A1): Steps S1 to S3), and the calculation function [√] for limiting the calculation formula data of the question is set (FIG. 8(A2): Steps S4→S11, S12 (Yes)) Shows the operation of.

The operation of setting the calculation function to be restricted is the same as the operation example of (Example 1) and (Example 2: FIG. 8A2) in which the calculation function displayed by operating the [OPTN] key is restricted. The configuration is performed from a setting screen (not shown).

On the other hand, as shown in FIG. 8(A3), by selecting the item of [Calculation function restriction] from the option menu (not shown) displayed by operating the [OPTN] key, for example, the problem The symbol [√] of the calculation function used for the calculation formula data is first displayed with the cursor Cu (blue) indicating the non-restricted state. Here, by changing the cursor Cu (blue) to the cursor Cu (red) indicating the restricted state in accordance with the operation of the cursor keys [←] [→] 114, the setting of the calculation function to be restricted is performed. It may be configured to perform.

Also in this (Embodiment 2), in the teacher scientific calculator 10FA, a process of sending the student's scientific calculator 10FB (or the tablet terminal 20) by associating a unique ID as the question formula with the question formula data and the restricted function data ( 8(A5)→(B1)(C): Steps S7, S8), the student scientific calculator 10FB (or the tablet terminal 20) receives the question data transmitted from the teacher scientific calculator 10FA, and answers The process of inputting the calculation formula data of (1) and determining the correctness (FIGS. 8(B2) and (B3): Steps S13 to S26 (or Steps T1 to T19) are performed in the same manner as the above-described (Example 1).

In the case of this (Example 2), since the calculation function [√] is limited, as shown in FIG. 8B3, in the student scientific calculator 10FB, the calculation formula data “(1/ For “√2)-{(√2-1)/2)}=”, the calculation formula data “1/2” of the answer derived by hand calculation is input.

(Example 3)
FIG. 9 is a diagram showing an operation state in the basic calculation mode and an operation state of the tablet terminal 20 according to the calculation process (Example 3) of the scientific calculator 10F (10 FA for teacher/10 FB for student).

In this (Embodiment 3), for example, as shown in FIG. 9(C1), the problem “tree height (A+1.6 (m)) displayed on the electronic blackboard using the tablet terminal 20 is compared with the triangular ratio. Answering with the calculation formula data using, the teacher's scientific calculator 11FA inputs the calculation formula data of the question (left side) and the calculation formula data of the answer (right side) in advance. A case will be described in which the correctness/incorrectness of the calculation formula data of the answer input by the student scientific calculator 10FB is determined based on the calculation formula data.

First, in the teacher's scientific calculator 11FA, as shown in FIG. 9(A1), a limiting calculation function (trigonometric function [sin][cos][tan]) is set (step S10 (Yes)→S11).

Then, as shown in FIG. 9(A2), the basic calculation mode is set, and the calculation formula data “A+1.6=” of the question and the calculation formula data “10×tan(25)+1.6” of the answer are input. (Step S12 (No)→S1 to S3).

Here, since the question (FIG. 9(C1)) needs to be answered by the calculation formula data using the trigonometric ratio, the trigonometric function ([sin][cos][tan] set in the limiting calculation function is used. ]), as shown in FIG. 9(A3), the restriction is released only for the calculation function corresponding to the calculation formula data portion “tan(25)” of the trigonometric function necessary for the correct answer.

This is similar to the case described with reference to FIGS. 8(A3) and 8(A4) in (Example 2) above, from the option menu (not shown) in accordance with the operation of the [OPTN] key, By selecting the item of “Functional restriction”, the calculation formula data portion “tan(25)” related to the calculation function in the displayed calculation formula data “A+1.6=10×tan(25)+1.6” is displayed. The cursor Cu (red) indicating the current restricted state is displayed. Then, by changing the cursor Cu (red) to the cursor Cu (blue) indicating an unrestricted state in accordance with the operation of the cursor key [←] [→] 114, the restricted calculation function is displayed. Some restrictions are released (step S5 (Yes)→S6).

Here, by operating the [Communication] key 11Q, as shown in FIG. 9(A4)→(B1), a communication connection is made with the student scientific calculator 10FB (another computing device), and the answer to the question is answered. In the case where work data including a series of formula data “A+1.6=10×tan(25)+1.6” consisting of formula data is sent to the student scientific calculator 10FB as question data (step S7 (Yes)). ), the calculation formula data (right side) of the answer, “10×tan(25)+1.6”, is removed and transmitted (step S8).

For the tablet terminal 20, work data including a series of formula data “A+1.6=10×tan(25)+1.6” consisting of the formula data of the question and the answer is the question data as it is. Is transmitted to the tablet terminal 20 (step S8).

Then, in the tablet terminal 20, as shown in FIG. 9(C1)→(B1), when the question data designated from the question data list is sent to the student scientific calculator 10FB, the question and answer are calculated. Of the series of calculation formula data “A+1.6=10×tan(25)+1.6” consisting of formula data, the calculation formula data (right side) “10×tan(25)+1.6” of the answer is excluded. It is transmitted (steps T8 to T11).

Thereafter, as shown in FIG. 9B2, in the scientific calculator 11FB1 of the student "Taro", the calculation formula data "A+1.6=" of the question displayed on the display output unit 12 (steps S13 to S15). When the calculation formula data “10×tan(25)+1.6” is input according to the user (student) operation and the calculation is executed (steps S16 and S17 (Yes)), the calculation of the answer is performed. Of the calculation functions (trigonometric functions [sin][cos][tan]) restricted in the expression data (right side), the calculation expression data part “tan(25)” in which the restriction has been released is released from the function restriction. The line (underline) PL identifies and displays the calculation result “6.26307... ”(steps S18 to S20).

As a result, the student “Taro” has a function limitation of the calculation formula data portion “tan(25)” using the trigonometric function in the calculation formula data “10×tan(25)+1.6” of the input answer. By confirming that the answer line is identified and displayed, it is possible to know that the calculation formula data of the answer has been correctly input.

Then, the work data of a series of formula data “A+1.6=10×tan(25)+1.6” including the formula data of the answer input by the student “Taro” is sent to the tablet terminal 20 as answer data. When transmitted (steps S25 and S26), in the tablet terminal 20, the calculation formula data of the question data specified from the question data list “A+1.6=10×tan(25)+1.6” is added to the answer calculation formula. It is determined that the data is included (steps T12 to T14 (Yes)).

Then, the calculation formula data “10×tan(25)+1.6” of the answer of the designated question data and the calculation formula data “10×tan of the answer data received from the scientific calculator 10FB1 of the student “Taro”. (25)+1.6" are judged to be equivalent (the same here) (step T15 (Yes)).

In the step T15, the calculation formula data of the answer of the designated question data and the calculation formula data of the answer of the answer data received from the student scientific calculator 10FB are equal to each other, the calculation result of each calculation formula data of the answer. If there is a match, it means that the answer of the answer data is correct even if there is a difference in the configuration of the calculation formula data of the answer.

Then, similarly to the above, the answer data in which the user name registered corresponding to the unique ID of the scientific calculator 10FB1 of the student “Taro” and the determination result [OK] that the answer data is correct are associated with each other. , Is stored and stored in the response data area 23d (step T16), and the response data list LA is displayed as shown in FIG. 9(C2) (step T17).

On the other hand, as shown in FIG. 9(B3), in the scientific calculator 11FB2 of the student “Hitomi”, for the calculation formula data “A+1.6=” of the question displayed on the display output unit 12 (steps S13 to S15), When the calculation formula data “10×sin(25)+1.6” is input according to the user (student) operation and the calculation is executed (steps S16 and S17 (Yes)), the calculation formula of the answer The calculation formula data part “sin(25)”, which is a calculation function (trigonometric function [sin][cos][tan]) restricted in the data (right side), is identified by the function restriction line (deletion line) RL. (Steps S18 to S20).

As a result, the student "Hitomi" is restricted in the function "sin (25)" using the trigonometric function in the calculated answer data "10 x sin (25) + 1.6" of the input answer. It is possible to know that the calculation formula data of the answer is incorrect, particularly in the calculation formula data portion “sin(25)”, by confirming that it is identified and displayed by the line (deletion line) RL.

Then, the work data of a series of formula data “A+1.6=10×sin(25)+1.6” including the formula data of the answer input by the student “Hitomi” is sent to the tablet terminal 20 as answer data. When transmitted (steps S25 and S26), the calculation formula data “10×tan(25)+1.6” of the answer of the designated question data and the answer of the answer data received from the scientific calculator 10FB2 of the student “Hitomi” It is determined that the calculation formula data “10×sin(25)+1.6” are not equivalent (different here) (step T15 (No)).

Then, similarly to the above, the answer data in which the user name registered corresponding to the unique ID of the scientific calculator 10FB2 of the student "Hitomi" and the determination result [NG] indicating that the answer data is incorrect are associated with each other. Is stored and stored in the response data area 23d (step T19), and the response data list LA is displayed (step T17).

In each of the above-described embodiments, the calculation function used for the calculation formula data of the question data is described as the case of one calculation function [Σ][√][trigonometric function], but calculation formula data using a plurality of calculation functions Alternatively, any one of the calculation functions may be set as a restriction target.

Therefore, according to the scientific calculator 10F as the calculation device having the above-described configuration and the tablet terminal 20 as the electronic device (communication device), the calculation function such as [Σ][√][trigonometric function] is calculated in the teacher scientific calculator 11FA. By inputting the formula data of the question used, setting the limit of the calculation function used for the formula data of the question and operating the [Communication] key 11Q, the formula data of the question and the limit are set. The calculation function (restriction function) is transmitted as question data directly to the student scientific calculator 10FB or by relaying the tablet terminal 20.

In the student scientific calculator 10FB, when the calculation formula data of the answer is input to the calculation formula data of the question of the question data received and displayed from the scientific calculator for teacher 10FA and the calculation execution is instructed, When the calculation formula data includes a calculation function corresponding to the restriction function of the received question data, the symbol of the restricted calculation function in the calculation formula data of the question is displayed as an identification mark h. Also, an error message R indicating the function limitation is displayed, and calculation execution of the calculation formula data of the answer is prohibited.

As a result, the problem of the formula data can be easily created using the calculation function of the calculation device (10FA), and the calculation function used for the problem can be calculated in the other calculation device (10FB) of the problem transmission destination. It is possible to limit the questions.

In addition, according to the scientific calculator 10F as the calculation device having the above-described configuration and the tablet terminal 20 as the electronic device (communication device), the problem that is received and displayed from the teacher scientific calculator 10FA in the student scientific calculator 10FB. When inputting the formula data of the answer to the formula data of the data question and instructing the execution of the calculation, the formula data of the answer includes a calculation function corresponding to the function of limiting the received question data. If not, the calculation of the calculation formula data of the answer is executed, and it is determined whether the calculation result matches the calculation result of the calculation formula data of the question. Then, if they match, verify [OK] is displayed, and if they do not match, verify [NG] is displayed.

Thereby, the user of the student scientific calculator 10FB can easily confirm whether the calculation formula data of the answer input to the calculation formula data of the question is correct or incorrect.

Further, according to the scientific calculator 10F as the calculation device having the above-mentioned configuration and the tablet terminal 20 as the electronic device (communication device), the calculation function (the restriction function (here, the triangle function) in the teacher scientific calculator 10FA is set. For the function [sin][cos][tan])), it is possible to remove the restriction only on the formula data part (here, “tan25”) of a specific configuration related to the calculation function, so that, for example, the formula data of the correct answer. The use of the calculation formula data portion essential for the above can be permitted in advance.

Then, in the student scientific calculator 10FB, when the answer calculation data input to the calculation formula data of the question includes a calculation formula data portion having a specific configuration in which the limitation of the calculation function is released. Since the calculation formula data portion is identified and displayed by the function restriction release line (underline) PL, it is possible to clearly know that the calculation formula data of the answer using the corresponding calculation function has been correctly input.

Further, according to the scientific calculator 10F as the calculation device having the above-described configuration and the tablet terminal 20 as the electronic device (communication device), in the tablet terminal 20, the calculation formula data of the problem transmitted from the student scientific calculator 10FB and When a series of formula data of the formula data of the answer is received as the reply data, it is judged whether the question and the formula data of the answer match, or not. Then, the answer data including the result [OK/NG] of the correctness determination can be saved and displayed in the answer data list LA.

It should be noted that each processing method by the calculation device (10F/10FA/10FB) and the electronic device (communication device) (20) described in each of the embodiments, that is, the calculation process shown in the flowchart of FIG. 4 and the flowchart of FIG. Each of the methods such as the communication interrupt processing of the calculation processing shown above and the communication processing shown in the flowchart of FIG. 6 is a memory card (ROM card, RAM card, etc.), magnetic disk (floppy) as a program that can be executed by a computer. (Registered trademark) disks, hard disks, etc.), optical disks (CD-ROM, DVD, etc.), semiconductor memories, and other storage media can be stored and distributed. Further, program data for realizing each of the above methods can be transmitted on the communication network N in the form of a program code, and the program data is transmitted to a computer of an electronic device connected to the communication network N by a communication unit. The function of inputting the formula data of the problem described above, the function of setting the limit of the calculation function used for the formula data of the problem, and the limit function of setting the formula data of the problem and the limit. It is also possible to realize a function of transmitting information and other information as problem data to another computing device.

The invention of the present application is not limited to the above-described embodiments, and can be variously modified at the stage of implementation without departing from the spirit of the invention.

For example, instead of transmitting and outputting the calculation data from the calculation device 10 by the wireless communication unit 27, the calculation data and the function restriction information are two-dimensionally coded and displayed (displayed and output) on the display output unit 12. Good. The two-dimensional code displayed (displayed and output) on the computing device 10 is photographed by the camera unit 26 of the electronic device (communication device) 20, and the photographed two-dimensional code is converted into original calculation data and function restriction information. Will be acquired.

Further, between the electronic devices (communication devices) 20, one of the electronic devices (communication devices) calculates the calculation data and the function restriction information into a two-dimensional code, and the display output unit 12 outputs the two-dimensional code, and the other electronic device (communication device). Then, the camera unit 26 of the electronic device (communication device) 20 may capture the image, and the captured two-dimensional code may be converted into the original calculation data and the function restriction information and acquired. In this way, when transmitting/receiving by wireless communication, the calculation data and the function restriction information are output to the display unit of an image in which the two-dimensional bar code is converted/the original calculation data and the function restriction information by capturing and converting the two-dimensional bar code. The present invention can be carried out by substituting

Furthermore, each of the embodiments includes inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in each embodiment, or some constituent elements are combined in different forms, the problems described in the section of the problem to be solved by the invention When the above can be solved and the effect described in the section of the effect of the invention can be obtained, a structure in which these constituent elements are deleted or combined can be extracted as the invention.

The inventions described in the initial claims of the present application will be additionally described below.

[1]
Calculation formula input means for inputting calculation formula data including a calculation function,
A restricted formula output means for outputting the formula data input by the formula input means and use restriction information of the calculation function;
A computing device comprising:

[2]
The calculation formula input means inputs a calculation formula including any one or a plurality of calculation functions,
The restricted calculation formula output unit has a restriction target setting unit that sets one or more of the plurality of calculation functions as a target of use restriction according to a user operation, and the calculation input by the calculation formula input unit Outputting formula data and use restriction information of the calculation function set by the restriction target setting means,
The computing device according to [1], characterized in that

[3]
The limited calculation formula output means, among the calculation formula data input by the calculation formula input means, regarding a part of the calculation formula data corresponding to the calculation function set as the use restriction target by the restriction target setting means. , Has a limit releasing means for releasing the use limit of the calculation function according to the user operation,
The calculation formula data input by the calculation formula input unit and the use restriction information of the calculation function set by the restriction target setting unit are restricted by a part of the calculation formula data in which the use restriction is released by the restriction releasing unit. Output including release information,
The computing device according to [2], characterized in that

[4]
A restricted formula acquisition means for acquiring the formula data output from the external device and the use limit information of the calculation function,
Calculation formula display means for displaying the calculation formula data acquired by the restricted calculation formula acquisition means as the calculation formula data of the problem,
Calculation execution means for inputting the calculation formula data of an answer to the calculation formula data of the question displayed by the calculation formula display means and executing the calculation of the calculation formula data of the question and the answer;
If the calculation formula data of the answer input according to the user operation includes the calculation function of the use restriction information acquired by the restricted calculation formula acquisition means, the calculation function of the use restriction information is restricted. Limiting function display means for displaying a message,
The calculation device according to any one of [1] to [3].

[5]
When the calculation formula data of the answer input according to the user operation does not include the calculation function of the use restriction information acquired by the restricted calculation formula acquisition unit, the problem executed by the calculation execution unit Calculation collation means for collating whether or not the calculation results of the formula data of the answer match,
Collation result display means for displaying the collation result of whether or not the calculation result of the calculation formula data of the question and the answer by the calculation collating means,
The computing device according to [4], further comprising:

[6]
The calculation formula output means outputs the calculation formula data input by the calculation formula input means by wireless communication and the use restriction information of the calculation function to another calculation device,
The external device is another computing device,
The computing device according to [4] or [5], characterized in that

[7]
The calculation formula output means outputs the calculation formula data input by the calculation formula input means by wireless communication and the use restriction information of the calculation function to an external electronic device,
The external device is an external electronic device,
The computing device according to [4] or [5], characterized in that

[8]
The calculation device according to [1], wherein the calculation formula output means outputs the input calculation formula data and use restriction information of the calculation function to the display unit as two-dimensional coded image data.

[9]
A restricted formula acquisition unit for acquiring formula data including a calculation function output from an external calculation device and use restriction information of the calculation function,
A restricted calculation formula output means for outputting the calculation formula data acquired by the restricted calculation formula acquisition means and the use restriction information of the calculation function to another calculation device,
An answer calculation in which the calculation formula data output to the other calculation device by the limited calculation formula output means is used as the calculation formula data of the problem and the calculation formula data of the answer input according to the user operation is acquired from the other calculation device. Expression acquisition means,
Calculation for determining whether or not the calculation result of the calculation formula data output to the other calculation device by the limited calculation formula output unit and the calculation result of the calculation formula data of the answer acquired by the answer calculation formula acquisition unit are equal. Result judgment means,
An electronic device comprising:

[10]
The limited calculation formula output means outputs the calculation formula data acquired by the restricted calculation formula acquisition means and the use restriction information of the calculation function to another calculation device by wireless communication [9]. Electronic device described in.

[11]
The electronic device according to [9], wherein the restricted calculation formula acquisition unit acquires calculation formula data including the calculation function and use restriction information of the calculation function from another calculation device by wireless communication.

[12]
The restricted calculation formula output means outputs the calculation formula data acquired by the restricted calculation formula acquisition means and the use restriction information of the calculation function to the display unit as two-dimensional coded image data. [9] Electronic device described.

[13]
The restricted calculation formula acquisition means captures an image displayed by the external calculation device, in which calculation formula data including the calculation function and use restriction information of the calculation function are two-dimensionally coded. Then, the calculation formula data including the calculation function corresponding to the two-dimensional coded image is acquired, and the electronic device according to [9].

[14]
The calculation formula data of the answer acquired from the other calculation device by the answer calculation formula acquisition means is acquired in association with the identification information of the other calculation device,
Judgment result of whether or not the calculation result of the calculation formula data output to the other calculation device determined by the calculation result determination means and the calculation result of the calculation formula data of the answer acquired from the other calculation device are equal to each other Is provided with an answer storage unit that stores the information in association with the identification information of the other computing device,
[9] The electronic device according to [9].

[15]
A calculation method for controlling a calculation device, comprising:
Enter the formula data including the calculation function,
Outputting the input calculation formula data and use restriction information of the calculation function,
A calculation method characterized by that.

[16]
A communication method for controlling an electronic device, comprising:
Obtaining calculation formula data including a calculation function output from an external calculation device and use restriction information of the calculation function,
Outputting the obtained calculation formula data and use restriction information of the calculation function to another calculation device,
Obtaining the formula data of the answer input according to the user operation as the formula data of the problem output formula data output to the other computing device, from the other computing device,
It is determined whether or not the calculation result of the calculation formula data output to the other calculation device and the calculation result of the calculation formula data of the answer acquired from the other calculation device are equal to each other.
A communication method characterized by the above.

[17]
A program for controlling a computer of a computing device,
The computer,
Calculation formula input means for inputting calculation formula data including a calculation function,
A restricted formula output means for outputting the formula data input by the formula input means and the use restriction information of the calculation function;
A computer readable program to function as.

[18]
A program for controlling a computer of an electronic device,
The computer,
A restricted formula acquisition unit for acquiring formula data including a calculation function output from an external calculation device and use restriction information of the calculation function,
A restricted calculation formula output means for outputting the calculation formula data acquired by the restricted calculation formula acquisition means and the use restriction information of the calculation function to another calculation device,
An answer calculation in which the calculation formula data output to the other calculation device by the limited calculation formula output means is used as the calculation formula data of the problem and the calculation formula data of the answer input according to the user operation is acquired from the other calculation device. Expression acquisition means,
Calculation for determining whether or not the calculation result of the calculation formula data output to the other calculation device by the limited calculation formula output unit and the calculation result of the calculation formula data of the answer acquired by the answer calculation formula acquisition unit are equal. Result judgment means,
A computer readable program to function as.

10F (10FA/10FB)...Calculation device (teacher scientific calculator/student scientific calculator)
11... Key input unit 111... Numerical/computation symbol key group 112... Function function key group 113... Mode setting key group 114... Cursor key 12... Display output unit 13... CPU
14... Memory 14a... Calculation processing program 14b... Unique ID
14c... Calculation mode area 14d... Input data area 14e... Restricted function data area 16... Wireless communication section 20... Communication equipment (tablet terminal etc.)
21... Display output unit 22... CPU
23... Memory 23a... Communication processing program 23b... EDUCATION program 23c... Problem data area 23d... Answer data area 23e... Work data area 25... Touch input part 26... Wireless communication part 27... Short-distance wireless communication part 30... Calculation server N... Communication network (Web)
h… Restriction function identification display R… Function restriction error message LA… Answer data list PL… Function restriction release line (underline)
RL: Function restriction line (deletion line)

Claims (16)

Calculation formula input means for inputting calculation formula data including a calculation function,
A restricted formula output means for transmitting the formula data input by the formula input means to an external device through communication means together with use restriction information for restricting the use of the calculation function included in the formula data ;
A computing device comprising: The calculation formula input means inputs calculation formula data including any or a plurality of calculation functions,
The restricted calculation formula output unit has a restriction target setting unit that sets one or more of the plurality of calculation functions as a target of use restriction according to a user operation, and the calculation input by the calculation formula input unit Outputting formula data and use restriction information of the calculation function set by the restriction target setting means,
The computing device according to claim 1, wherein The limited calculation formula output means, among the calculation formula data input by the calculation formula input means, regarding a part of the calculation formula data corresponding to the calculation function set as the use restriction target by the restriction target setting means. , Has a limit releasing means for releasing the use limit of the calculation function according to the user operation,
The calculation formula data input by the calculation formula input unit and the use restriction information of the calculation function set by the restriction target setting unit are restricted by a part of the calculation formula data in which the use restriction is released by the restriction releasing unit. Output including release information,
The computing device according to claim 2, wherein A restricted formula acquisition means for acquiring the formula data output from the external device and the use limit information for limiting the use of the calculation function,
Calculation formula display means for displaying the calculation formula data acquired by the restricted calculation formula acquisition means as the calculation formula data of the problem,
Calculation execution means for inputting answer calculation formula data in response to the user operation for the calculation formula data of the question displayed by the calculation formula display means and executing calculation of the question and answer calculation formula data;
When the calculation formula data of the answer input according to the user operation includes the calculation function of the use restriction information acquired by the restricted calculation formula acquisition means, the calculation function of the use restriction information is restricted. Limiting function display means for displaying a message,
The calculation device according to claim 1, further comprising: When the calculation formula data of the answer input according to the user operation does not include the calculation function of the use restriction information acquired by the restricted calculation formula acquisition unit, the problem executed by the calculation execution unit Calculation collation means for collating whether or not the calculation results of the formula data of the answer match,
Collation result display means for displaying the collation result of whether or not the calculation result of the calculation formula data of the question and the answer by the calculation collating means,
The computing device according to claim 4, further comprising: The Restricted equation output means outputs a calculation data input by the calculation formula input means by wireless communication to other computing devices,
The external device is another computing device,
The computing device according to claim 4 or 5, characterized in that. The Restricted equation output means outputs a calculation data input by the calculation formula input means by wireless communication to an external electronic device,
The external device is an external electronic device,
The computing device according to claim 4 or 5, characterized in that. The calculation device according to claim 1, wherein the restricted calculation formula output unit outputs the input calculation formula data and use restriction information of the calculation function to the display unit as two-dimensional coded image data. A restricted formula acquisition unit for acquiring formula data including a calculation function output from an external calculation device and use restriction information of the calculation function,
A restricted calculation formula output means for outputting the calculation formula data acquired by the restricted calculation formula acquisition means and the use restriction information of the calculation function to another calculation device,
An answer calculation in which the calculation formula data output to the other calculation device by the limited calculation formula output means is used as the calculation formula data of the problem and the calculation formula data of the answer input according to the user operation is acquired from the other calculation device. Expression acquisition means,
Calculation for determining whether or not the calculation result of the calculation formula data output to the other calculation device by the limited calculation formula output unit and the calculation result of the calculation formula data of the answer acquired by the answer calculation formula acquisition unit are equal. Result judgment means,
An electronic device comprising: 10. The limited calculation formula output means outputs the calculation formula data acquired by the restricted calculation formula acquisition means and the use restriction information of the calculation function to another calculation device by wireless communication. Electronic device described in. 10. The electronic device according to claim 9, wherein the restricted calculation formula acquisition unit acquires calculation formula data including the calculation function and use restriction information of the calculation function from another calculation device by wireless communication. 10. The limited calculation formula output unit outputs the calculation formula data acquired by the restricted calculation formula acquisition unit and the use restriction information of the calculation function to the display unit as two-dimensional coded image data. Electronic device described. The restricted calculation formula acquisition means captures an image displayed by the external calculation device, in which calculation formula data including the calculation function and use restriction information of the calculation function are two-dimensionally coded. 10. The electronic device according to claim 9, wherein calculation formula data including the calculation function corresponding to the two-dimensionally coded image is acquired. The calculation formula data of the answer acquired from the other calculation device by the answer calculation formula acquisition means is acquired in association with the identification information of the other calculation device,
Judgment result of whether or not the calculation result of the calculation formula data output to the other calculation device determined by the calculation result determination means and the calculation result of the calculation formula data of the answer acquired from the other calculation device are equal to each other Is provided with an answer storage unit that stores the information in association with the identification information of the other computing device,
The electronic device according to claim 9, wherein: A program for controlling a computer of a computing device,
The computer,
Calculation formula input means for inputting calculation formula data including a calculation function,
A restricted calculation formula output means for transmitting the calculation formula data input by the calculation formula input means to the external device by the transmission means together with use restriction information for restricting the use of the calculation function included in the calculation formula data ,
A computer readable program to function as. A program for controlling a computer of an electronic device,
The computer,
A restricted formula acquisition unit for acquiring formula data including a calculation function output from an external calculation device and use restriction information of the calculation function,
A restricted calculation formula output means for outputting the calculation formula data acquired by the restricted calculation formula acquisition means and the use restriction information of the calculation function to another calculation device,
An answer calculation in which the calculation formula data output to the other calculation device by the limited calculation formula output means is used as the calculation formula data of the problem and the calculation formula data of the answer input according to the user operation is acquired from the other calculation device. Expression acquisition means,
Calculation for determining whether or not the calculation result of the calculation formula data output to the other calculation device by the limited calculation formula output unit and the calculation result of the calculation formula data of the answer acquired by the answer calculation formula acquisition unit are equal. Result judgment means,
A computer readable program to function as.